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Difference between revisions of "Mellanox-Cinder"

Line 6: Line 6:
 
= Grizzly Release =
 
= Grizzly Release =
 
== Installation ==
 
== Installation ==
 +
=== Getting the code ===
 +
wget https://github.com/mellanox-openstack/cinder-iser/archive/stable/grizzly.zip
 +
cd cinder-iser-stable-grizzly
  
=== Configuration ===
+
=== Applying the patches ===
 +
You have two choices:
 +
# To apply this support, replace the files under "cinder/cinder/" And "nova/nova/" Respectively.
 +
# Apply the patches under "cinder/" And "nova/", don't forget to copy "cinder/cinder/volume/iser.py" if you choose this way.
 +
 
 +
== Configuration ==
 
In order to enable iSER, need to adjust these values at '''/etc/cinder/cinder.conf''':
 
In order to enable iSER, need to adjust these values at '''/etc/cinder/cinder.conf''':
  
Line 22: Line 30:
 
  libvirt_volume_drivers = iser=nova.virt.libvirt.volume.LibvirtISERVolumeDriver
 
  libvirt_volume_drivers = iser=nova.virt.libvirt.volume.LibvirtISERVolumeDriver
  
=== Getting the code ===
 
wget https://github.com/mellanox-openstack/cinder-iser/archive/stable/grizzly.zip
 
cd cinder-iser-stable-grizzly
 
  
=== Applying the patches ===
+
== Restarting the services ==
You have two choices:
+
Restart Cinder and Nova compute services
# To apply this support, replace the files under "cinder/cinder/" And "nova/nova/" Respectively.
 
# Apply the patches under "cinder/" And "nova/", don't forget to copy "cinder/cinder/volume/iser.py" if you choose this way.
 
  
=== Restarting the services ===
+
= Havana Release =
Restart Cinder and Nova compute services
 
  
 
= References =
 
= References =

Revision as of 10:49, 20 November 2013

Overview

iSER (iSCSI over RDMA) Mellanox OpenStack support to Cinder.
This can allow 5x faster bandwidth compared to using iSCSI TCP.

For example, over RAM device LUN I got ~1.3GBps Vs. ~5.5GBps (TCP Vs. iSER), and much lower CPU overhead.

Grizzly Release

Installation

Getting the code

wget https://github.com/mellanox-openstack/cinder-iser/archive/stable/grizzly.zip
cd cinder-iser-stable-grizzly

Applying the patches

You have two choices:

  1. To apply this support, replace the files under "cinder/cinder/" And "nova/nova/" Respectively.
  2. Apply the patches under "cinder/" And "nova/", don't forget to copy "cinder/cinder/volume/iser.py" if you choose this way.

Configuration

In order to enable iSER, need to adjust these values at /etc/cinder/cinder.conf:

iser_ip_address = <ipoib/roce_address>
volume_driver = cinder.volume.drivers.lvm.LVMISERDriver

iser_ip_address is required to do a "discovery" over the IB/RoCE interface from the initiator side.

volume_driver points cinder to use the ISERDriver, instead the LVMISCSIDriver.


On nova-compute side change the following in /etc/nova/nova.conf:

libvirt_volume_drivers = iser=nova.virt.libvirt.volume.LibvirtISERVolumeDriver


Restarting the services

Restart Cinder and Nova compute services

Havana Release

References

1. OpenStack solution page at Mellanox site

2. Source repository

3. Mellanox OFED web page For more details, please refer any inquiries to openstack@mellanox.com.

4. Cinder-controller

5. Cinder-node

6. Cinder-install

Return to Mellanox-OpenStack wiki page.